** Update 28/08/2015 **
There is an update for this post.
Last week, open-vswitch netdev-dpdk got the long awaited vhost-user support. This feature, uses the dpdk-2.0.0 to offload the servicing of a Virtual Machine’s (VM’s) virtio-net devices to a DPDK-based application in place of the kernel’s vhost-net module. The latest patch, uses also the vhost-user library to pass traffic through user domain sockets, instead of cuse signaling..